NASA is a high-tech space agency but even astronauts and engineers need to cut loose with some wild mission posters. Take a look at some of the wildest mission posters by NASA astronauts and their crewmates in this gallery.

NASA's Solar Dynamics Observatory (SDO) beamed back its first data in June 2010, nearly 5 years later its still going strong with over 2 million images. This time-lapse shows multiple wavelength images captured by the probe.

See photos and images of the Mars-bound comet C/2013 A1 Siding Spring, which will buzz the Red Planet on Oct. 19, 2014. Comet Siding Spring was discovered in January 2013. Its pass through the inner solar system will be closely watched by Mars probes.

You are sailing across 3 million light years to Messier 33 in this view from the VLT Survey Telescope (VST) at ESO’s Paranal Observatory in Chile. Sparking with star clusters and red gas, the Triangulum Galaxy is 2nd closest spiral to our Milky Way.

In the future, astronomers could detect hints of alien life by scanning the atmospheres of distant worlds, researchers say. Such work would require the development and launch of big, sophisticated new space telescopes.

A newcomer to astrophotography produced a stunning shot of the Milky Way during his first effort. See how photographer Stephen Ippolito captured this amazing view from Joshua Tree National Park in California.